Chapter 19 Flashcards
Corn should not persist without human cultivation
True
Some corn hybrids are adapted to grow in places with a growing season as short as 70 days.
True
Flour corn is more resistant to fungi and insects than is flint corn.
False
Most corn grown today is hybrid corn.
True
Wheat is adapted to warm tropical climates.
False
Soft wheat has a greater protein content compared to hard wheat.
False
Rice is a primary grain crop for over 50 percent of the world’s population.
True
Rice is very productive when grown under drier conditions.
False
Wild rice is commonly used as a livestock feed.
False
Barley can be used as a substitute for wheat in making raised bread.
False
Oats are still valued as feed for horses.
True
Sorghum ranks fourth in importance worldwide as a human food crop after corn, rice, and wheat.
True
Rice in most of the world is cultivated using highly mechanized techniques.
False
Sweet sorghum is being investigated as an alternative biofuel.
True
Based on acreage and economic value, which of the following crops is the most important in the United States?
A. rice
B. wheat
C. soybean
D. corn
D. corn
On a corn plant, the male flowers are called:
A. the silk
B. the tassel
C. the ear
D. the husk
B. the tassel
Which is the most widely grown corn type?
A. flint
B. flour
C. pod
D. dent
D. dent
Which of the following corn types has very little starch?
A. flint
B. pop
C. sweet
D. pod
C. sweet
The leading use of corn is:
A. as livestock feed
B. in sweeteners
C. as corn on the cob
D. in processed corn products
A. as livestock feed
Which of the following crops is known as the”staff of life?”
A. corn
B. wheat
C. barley
D. oats
B. wheat
The number of tillers on a wheat plant typically ranges from:
A. 1 to 2
B. 3 to 5
C. 5 to 10
D. 10 to 20
B. 3 to 5
Which type of flour is made by grinding the entire wheat grain?
A. self-rising flour
B. bleached enriched flour
C. white flour
D. whole wheat flour
D. whole wheat flour
Which of the following is used like a cereal grain but is actually a member of the Polygonaceae family?
A. buckwheat
B. triticale
C. spelt
D. Emmer wheat
A. buckwheat
Wild rice is a:
A. cool season annual plant
B. warm season annual plant
C. cool season perennial plant
D. warm season perennial plant
A. cool season annual plant
The two leading states for commercial wild rice production are:
A. Texas and Wisconsin
B. Texas and California
C. Minnesota and California
D. Wisconsin and Minnesota
C. Minnesota and California
Which of the following grains is known for its cholestoral-lowering capability?
A. oats
B. barley
C. rye
D. wheat
A. oats
Grain sorghum is produced primarily in which two states?
A. Illinois and Michigan
B. California and Washington
C. North and South Dakota
D. Kansas and Texas
D. Kansas and Texas
Which of the following is commonly used as a winter cover crop?
A. corn
B. buckwheat
C. rye
D. rice
C. rye
Which of the following grains is adapted to high altitudes?
A. corn
B. quinoa
C. amaranth
D. buckwheat
B. quinoa
Tall fescue toxicosis is due to which of the following?
A. moldy tall fescue
B. a bacteria in tall fescue
C. overeating of tall fescue
D. a fungus in tall fescue
D. a fungus in tall fescue
